/* -*- c++ -*- */
/* This file is part of the KDE libraries
Copyright (C) 1998 Jörg Habenicht (j.habenicht@europemail.com)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#ifndef KRULER_H
#define KRULER_H
#include
#include
/**
* A ruler widget.
*
* The vertical ruler looks similar to this:
*
*
* meters inches
*
* ------ <--- end mark ---> ------
* -- -
* -- <---little mark---> --
* -- -
* -- ---
* --- <---medium mark -
* -- --
* -- tiny mark----> -
* -- ----
* -- -
* ---- <-----big mark --
* -- -
* |>-- <--ruler pointer--> |>--
*
*
*
* There are tiny marks, little marks, medium marks, and big marks along the
* ruler.
*
* To receive mouse clicks or mouse moves,
* the class has to be overloaded.
*
* For performance reasons, the public methods don't call @ref QWidget::repaint().
* (Slots do, see documentation below.)
* All the changed settings will be painted once after leaving
* to the main event loop.
* For performance painting the slot methods should be used,
* they do a fast @ref QWidget::repaint() call after changing the values.
* For setting multiple values like @ref minValue(), @ref maxValue(), @ref offset() etc.
* using the public methods is recommended
* so the widget will be painted only once when entering the main event loop.
*
* @short A ruler widget.
* @author Jörg Habenicht
*/
class KRuler : public QFrame
{
Q_OBJECT
Q_PROPERTY( int minValue READ minValue WRITE setMinValue )
Q_PROPERTY( int maxValue READ maxValue WRITE setMaxValue )
Q_PROPERTY( int value READ value WRITE setValue )
Q_PROPERTY( bool showTinyMarks READ showTinyMarks WRITE setShowTinyMarks )
Q_PROPERTY( bool showLittleMarks READ showLittleMarks WRITE setShowLittleMarks )
Q_PROPERTY( bool showMediumMarks READ showMediumMarks WRITE setShowMediumMarks )
Q_PROPERTY( bool showBigMarks READ showBigMarks WRITE setShowBigMarks )
Q_PROPERTY( bool showPointer READ showPointer WRITE setShowPointer )
Q_PROPERTY( bool showEndLabel READ showEndLabel WRITE setShowEndLabel )
Q_PROPERTY( int tinyMarkDistance READ tinyMarkDistance WRITE setTinyMarkDistance )
Q_PROPERTY( int littleMarkDistance READ littleMarkDistance WRITE setLittleMarkDistance )
Q_PROPERTY( int mediumMarkDistance READ mediumMarkDistance WRITE setBigMarkDistance )
Q_PROPERTY( int bigMarkDistance READ bigMarkDistance WRITE setBigMarkDistance )
Q_PROPERTY( double pixelPerMark READ pixelPerMark WRITE setPixelPerMark )
Q_PROPERTY( bool lengthFixed READ lengthFixed WRITE setLengthFixed )
public:
/*
#define KRULER_ROTATE_TEST KRULER_ROTATE_TEST
#undef KRULER_ROTATE_TEST
#ifdef KRULER_ROTATE_TEST
double xtrans, ytrans, rotate;
# warning tmporaer variablen eingeschaltet
#endif
*/
/**
* The types of units used.
**/
enum MetricStyle { Custom=0, Pixel, Inch, Millimetres, Centimetres, Metres };
/**
* The style (or look) of the ruler.
**/
// enum PaintStyle { Flat, Raised, Sunken };
/**
* Constructs a horizontal ruler.
*/
KRuler(QWidget *parent=0, const char *name=0);
/**
* Constructs a ruler with orientation @p orient.
*
* @p parent, @p name and @p f are passed to QFrame.
* The default look is a raised widget
* but may be changed with the inherited @ref QFrame methods.
*
* @param orient Orientation of the ruler.
* @param parent Will be handed over to @ref QFrame.
* @param name Will be handed over to @ref QFrame.
* @param f Will be handed over to @ref QFrame.
* @param allowLines Will be handed over to @ref QFrame.
*
**/
KRuler(Orientation orient, QWidget *parent=0, const char *name=0,
WFlags f=0);
/**
* Constructs a ruler with orientation @p orient and initial width @p widgetWidth.
*
* The width sets the fixed width of the widget. This is useful if you
* want to draw the ruler bigger or smaller than the default size.
* Note: The size of the marks doesn't change.
* @p parent, @p name and @p f are passed to @ref QFrame.
*
* @param orient Orientation of the ruler.
* @param widgetWidth Fixed width of the widget.
* @param parent Will be handed over to @ref QFrame.
* @param name Will be handed over to @ref QFrame.
* @param f Will be handed over to @ref QFrame.
* @param allowLines Will be handed over to @ref QFrame.
*
*/
KRuler(Orientation orient, int widgetWidth, QWidget *parent=0,
const char *name=0, WFlags f=0);
/**
* Destructor.
*/
~KRuler();
/**
* Sets the minimal value of the ruler pointer (default is 0).
*
* This method calls @ref update() so that the widget is painted after leaving
* to the main event loop.
*
**/
void setMinValue(int);
/**
* Returns the minimal value of the ruler pointer.
**/
inline int minValue() const;
/**
* Sets the maximum value of the ruler pointer (default is 100).
*
* This method calls @ref update() so that the widget is painted after leaving
* to the main event loop.
*/
void setMaxValue(int);
/**
* Returns the maximal value of the ruler pointer.
*/
inline int maxValue() const;
/**
* Sets minimum and maximum values of the ruler pointer.
*
* This method calls @ref update() so that the widget is painted after leaving
* to the main event loop.
*/
void setRange(int min, int max);
/**
* Sets the value of the ruler pointer.
*
* The value is indicated by painting the ruler pointer at the
* corresponding position.
* This method calls @ref update() so that the widget is painted after leaving
* to the main event loop.
*/
void setValue(int);
inline int value() const;
/**
* Sets the distance between tiny marks.
*
* This is mostly used in the English system (inches) with distance of 1.
*/
void setTinyMarkDistance(int);
/**
* Returns the distance between tiny marks.
**/
inline int tinyMarkDistance() const;
/**
* Sets the distance between little marks.
*
* The default value is 1 in the metric system and 2 in the English (inches) system.
*/
void setLittleMarkDistance(int);
/**
* Returns the distance between little marks.
*/
inline int littleMarkDistance() const;
/**
* Sets the distance between medium marks.
*
* For English (inches) styles it defaults to twice the little mark distance.
* For metric styles it defaults to five times the little mark distance.
**/
void setMediumMarkDistance(int);
inline int mediumMarkDistance() const;
/**
* Sets distance between big marks.
*
* For English (inches) or metric styles it is twice the medium mark distance.
**/
void setBigMarkDistance(int);
/**
* Returns the distance between big marks.
**/
inline int bigMarkDistance() const;
/**
* Shows/hides tiny marks.
**/
void setShowTinyMarks(bool);
bool showTinyMarks() const;
/**
* Shows/hides little marks.
**/
void setShowLittleMarks(bool);
bool showLittleMarks() const;
/**
* Shows/hides medium marks.
**/
void setShowMediumMarks(bool);
bool showMediumMarks() const;
/**
* Shows/hides big marks.
**/
void setShowBigMarks(bool);
bool showBigMarks() const;
/**
* Shows/hides end marks.
**/
void setShowEndMarks(bool);
bool showEndMarks() const;
/**
* Shows/hides the pointer.
*/
void setShowPointer(bool);
bool showPointer() const;
/**
* Sets the value that is shown per little mark.
*
* For metric systems this is 1 per mark.
* Note: If you set the value for little marks the values for
* medium and big marks are updated according to the
* the values set in the setXXMarkDistance(int) methods.
**/
void setValuePerLittleMark(int);
/**
* Sets the value that is shown per medium mark.
*
* For metric systems this is 5.
* Display of little marks is automatically disabled and
* big marks are updated according to
* the values set in the @ref setBigMarkDistance() method.
**/
void setValuePerMediumMark(int);
/**
* Sets the value that is shown per big mark.
*
* For metric systems this is 1
* Display of little and medium marks marks is disabled.
*/
void setValuePerBigMark(int);
/**
* Show/hide number values of the little marks.
*
* Default is @p false.
**/
// void setShowLittleMarkLabel(bool);
/**
* Show/hide number values of the medium marks.
*
* Default is @p false.
**/
// void setShowMediumMarkLabel(bool);
/**
* Show/hide number values of the big marks.
*
* Default is @p false.
**/
// void showBigMarkLabel(bool);
/**
* Show/hide number values of the end marks.
*
* Default is @p false.
**/
void setShowEndLabel(bool);
bool showEndLabel() const;
/**
* Sets the label this is drawn at the beginning of the visible part
* of the ruler to @p label
**/
void setEndLabel(const QString&);
QString endLabel() const;
/**
* Sets up the necessary tasks for the provided styles.
*
* A convenience method.
**/
void setRulerMetricStyle(KRuler::MetricStyle);
/**
* Sets the number of pixels between two base marks.
*
* Calling this method stretches or shrinks your ruler.
*
* For pixel display (@ref MetricStyle) the value is 10.0 marks
* per pixel ;-)
* For English (inches) it is 9.0, and for centimetres ~2.835 -> 3.0 .
* If you want to magnify your part of display, you have to
* adjust the mark distance @p here.
* Notice: The double type is only supported to give the possibility
* of having some double values.
* It should be used with care. Using values below 10.0
* shows visible jumps of markpositions (e.g. 2.345).
* Using whole numbers is highly recommended.
* To use @p int values use setPixelPerMark((int)your_int_value);
* default: 1 mark per 10 pixels
*/
void setPixelPerMark(double rate);
/**
* Returns the number of pixels between two base marks.
**/
inline double pixelPerMark() const;
/**
* Sets the length of the ruler, i.e. the difference between
* the begin mark and the end mark of the ruler.
*
* Same as (width() - offset())
*
* when the length is not locked, it gets adjusted with the
* length of the widget.
*/
void setLength(int);
int length() const;
/**
* Locks the length of the ruler, i.e. the difference between
* the two end marks doesn't change when the widget is resized.
*
* @param fix fixes the length, if true
*/
void setLengthFixed(bool fix);
bool lengthFixed() const;
/**
* Sets the number of pixels by which the ruler may slide up or left.
* The number of pixels moved is realive to the previous position.
* The Method makes sense for updating a ruler, which is working with
* a scrollbar.
*
* This doesn't affect the position of the ruler pointer.
* Only the visible part of the ruler is moved.
*
* @param count Number of pixel moving up or left relative to the previous position
**/
void slideUp(int count = 1);
/**
* Sets the number of pixels by which the ruler may slide down or right.
* The number of pixels moved is realive to the previous position.
* The Method makes sense for updating a ruler, which is working with
* a scrollbar.
*
* This doesn't affect the position of the ruler pointer.
* Only the visible part of the ruler is moved.
*
* @param count Number of pixel moving up or left relative to the previous position
**/
void slideDown(int count = 1);
/**
* Sets the ruler slide offset.
*
* This is like @ref slideup() or @ref slidedown() with an absolute offset
* from the start of the ruler.
*
* @param offset Number of pixel to move the ruler up or left from the beginning
**/
void setOffset(int offset);
/**
* Returns the current ruler offset.
**/
inline int offset() const;
int endOffset() const;
public slots:
/**
* Sets the pointer to a new position.
*
* The offset is NOT updated.
* @ref QWidget::repaint() is called afterwards.
**/
void slotNewValue(int);
/**
* Sets the ruler marks to a new position.
*
* The pointer is NOT updated.
* @ref QWidget::repaint() is called afterwards.
**/
void slotNewOffset(int);
void slotEndOffset(int);
protected:
/**
* @reimplemented
*/
virtual void drawContents(QPainter *);
private:
void init();
QRangeControl range;
Orientation dir;
int tmDist;
int lmDist;
int mmDist;
int bmDist;
int offset_;
bool showtm; /* show tiny, little, medium, big, endmarks */
bool showlm;
bool showmm;
bool showbm;
bool showem;
int valuelm; /* value per little, medium, big mark */
int valuemm;
int valuebm;
bool showValuelm;
bool showValuemm;
bool showValuebm;
double ppm; /* pixel per mark */
QString endlabel;
protected:
virtual void virtual_hook( int id, void* data );
private:
class KRulerPrivate;
KRulerPrivate *d;
};
int
KRuler::minValue() const
{ return range.minValue(); }
int
KRuler::maxValue() const
{ return range.maxValue(); }
int
KRuler::value() const
{ return range.value(); }
int
KRuler::tinyMarkDistance() const
{ return tmDist; }
int
KRuler::littleMarkDistance() const
{ return lmDist; }
int
KRuler::mediumMarkDistance() const
{ return mmDist; }
int
KRuler::bigMarkDistance() const
{ return bmDist; }
double
KRuler::pixelPerMark() const
{ return ppm; }
int
KRuler::offset() const
{ return offset_; }
#endif
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